The curative effect of Chinese medicine on dermatosis is prominent. The knowledge and theory of treatment on dermatosis is a excellent field of Chinese medicine. This article started at the dfference of Chinese medicine and west medicine in the treatment of dermatosis. Collected the recognition of disease causes, the identification of symptoms and the thinking processes of treatment on dermatosis. Concluded the ten Prescriptive methods of Chinese medicine on dermatosis. Finally, provided three case reports.